EP0919793A3 - Coriolis flowmeter with digital control system - Google Patents
Coriolis flowmeter with digital control system Download PDFInfo
- Publication number
- EP0919793A3 EP0919793A3 EP98309694A EP98309694A EP0919793A3 EP 0919793 A3 EP0919793 A3 EP 0919793A3 EP 98309694 A EP98309694 A EP 98309694A EP 98309694 A EP98309694 A EP 98309694A EP 0919793 A3 EP0919793 A3 EP 0919793A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- conduit
- sensor
- signal
- control system
- driver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8404—Coriolis or gyroscopic mass flowmeters details of flowmeter manufacturing methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8431—Coriolis or gyroscopic mass flowmeters constructional details electronic circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8436—Coriolis or gyroscopic mass flowmeters constructional details signal processing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
- G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
- G01F1/8481—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having loop-shaped measuring conduits, e.g. the measuring conduits form a loop with a crossing point
- G01F1/8486—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having loop-shaped measuring conduits, e.g. the measuring conduits form a loop with a crossing point with multiple measuring conduits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
- G01N2009/006—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis vibrating tube, tuning fork
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04021672A EP1484585B1 (en) | 1997-11-26 | 1998-11-26 | Coriolis flowmeter with digital control system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6655497P | 1997-11-26 | 1997-11-26 | |
US66554P | 1997-11-26 | ||
US111739 | 1998-07-08 | ||
US09/111,739 US6311136B1 (en) | 1997-11-26 | 1998-07-08 | Digital flowmeter |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04021672A Division EP1484585B1 (en) | 1997-11-26 | 1998-11-26 | Coriolis flowmeter with digital control system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0919793A2 EP0919793A2 (en) | 1999-06-02 |
EP0919793A3 true EP0919793A3 (en) | 1999-10-06 |
EP0919793B1 EP0919793B1 (en) | 2009-04-22 |
Family
ID=26746870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98309694A Expired - Lifetime EP0919793B1 (en) | 1997-11-26 | 1998-11-26 | Coriolis flowmeter with digital control system |
Country Status (4)
Country | Link |
---|---|
US (7) | US6311136B1 (en) |
EP (1) | EP0919793B1 (en) |
JP (2) | JP2000018995A (en) |
DE (3) | DE98309694T1 (en) |
Families Citing this family (223)
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- 1998-07-08 US US09/111,739 patent/US6311136B1/en not_active Expired - Lifetime
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- 1998-11-26 EP EP98309694A patent/EP0919793B1/en not_active Expired - Lifetime
- 1998-11-26 DE DE98309694T patent/DE98309694T1/en active Pending
- 1998-11-26 DE DE69840766T patent/DE69840766D1/en not_active Expired - Lifetime
- 1998-11-26 DE DE69841903T patent/DE69841903D1/en not_active Expired - Lifetime
-
2001
- 2001-08-17 US US09/931,002 patent/US6507791B2/en not_active Expired - Lifetime
- 2001-08-17 US US09/931,057 patent/US6754594B2/en not_active Expired - Lifetime
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2003
- 2003-08-11 US US10/637,620 patent/US6917887B2/en not_active Expired - Lifetime
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2005
- 2005-05-17 US US11/130,233 patent/US7136761B2/en not_active Expired - Lifetime
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2006
- 2006-10-31 US US11/555,033 patent/US7571062B2/en not_active Expired - Fee Related
-
2007
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- 2007-10-31 US US11/930,936 patent/US8000906B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
US20040031328A1 (en) | 2004-02-19 |
US20050209794A1 (en) | 2005-09-22 |
EP0919793A2 (en) | 1999-06-02 |
US20020038186A1 (en) | 2002-03-28 |
US6311136B1 (en) | 2001-10-30 |
US7571062B2 (en) | 2009-08-04 |
US20100107778A1 (en) | 2010-05-06 |
US20070124090A1 (en) | 2007-05-31 |
DE69840766D1 (en) | 2009-06-04 |
US6917887B2 (en) | 2005-07-12 |
JP2000018995A (en) | 2000-01-21 |
US7136761B2 (en) | 2006-11-14 |
US20020019710A1 (en) | 2002-02-14 |
EP0919793B1 (en) | 2009-04-22 |
US6754594B2 (en) | 2004-06-22 |
DE69841903D1 (en) | 2010-10-28 |
JP2007248479A (en) | 2007-09-27 |
US8000906B2 (en) | 2011-08-16 |
US6507791B2 (en) | 2003-01-14 |
DE98309694T1 (en) | 2004-09-30 |
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